Keymed (Medical & Industrial Equipment) Limited

Barry Edward Luke

Philip Michael Coath

Jennifer M Harley

Robert James McLean

An optical scope for viewing a feature at an inaccessible location includes a tube having a distal end which is insertable in use into an inaccessible location and a proximal end connected to a housing. The tube contains an optical system for gathering an image of a feature and relaying the image to a viewer. The tube also contains a device for directing a laser beam to a first reference point in the distal end, a first reflector mounted in the distal end for rotation about the first reference point to change the direction of the laser beam so as to direct the beam out of the scope to a target feature, and a second reflector mounted in the distal end for rotation about a second reference point to change the direction of a reference axis intersecting the second reference point so as to cause the axis to intersect the laser beam at a target feature. The scope includes a control device actuable at the proximal end of the scope to rotate the first and second reflectors about the first and second reference points, position sensors for detecting movement of the first and second reflectors, and an antibacklash means associated with the control device.

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Essex, United Kingdom

Barry Edward Luke